natural

  1. Does anyone know what type of rock is this?

    Does anyone know what type of rock is this?
  2. Digging through childhood finds

    I was that kid, the one who would find a hammock and declare it a dinosaur tooth or a crinoid fossil and call it a bead So of course I picked this up at the river one day Because of my predisposition of 'it's an artefact!!' I've only ever considered it a cool rock, that looks like an artifact...
  3. Odd rock

    Most of the metallic part is square granular and will flake,trying to identify. Streak test seamed like it was hematite and magnatite,but magnetic fields are opposite of those minerals. Also only a small part of what streaks like hematite is magnetic.any ideas what it is? a coworker found a...
  4. Is this some sort of artifact, its quite an odd rock.

    I used to collect rocks when I was younger, but for some reason I have always held on to this little mystery for all of these years. The rock is perfectly round and it seems to me that it is in fact a rock inside of a rock! Because of the color change of the crescent and round shapes. The...
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